1
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Match the column A (type of crystalline solid) with the column B (example for each type)

A B
P. Molecular solid i. SiC
Q. Ionic solid ii. Mg
R. Metallic solid iii. H$$_2$$O
S. Network solid iv. MgO

A
P - iii, Q - i, R - ii, S - iv
B
P - iv, Q - iii, R - ii, S - i
C
P - ii, Q - iv, R - iii, S - i
D
P - iii, Q - iv, R - ii, S - i
2
KCET 2023
MCQ (Single Correct Answer)
+1
-0

A metal crystallises in a body centred cubic lattice with the metallic radius $$\sqrt3\mathop A\limits^o $$. The volume of the unit cell in $$\mathrm{m}^3$$ is

A
$$64 \times 10^{-29}$$
B
$$4 \times 10^{-29}$$
C
$$6.4 \times 10^{-29}$$
D
$$4 \times 10^{-10}$$
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The resistance of $$0.1 \mathrm{~M}$$ weak acid $$\mathrm{H} A$$ in a conductivity cell is $$2 \times 10^3 \mathrm{~Ohm}$$. The cell constant of the cell is $$0.78 ~\mathrm{C} \mathrm{~m}^{-1}$$ and $$\lambda_{\mathrm{m}}^{\circ}$$ of acid $$\mathrm{H} A$$ is $$390 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$. The $$\mathrm{pH}$$ of the solution is

A
3.3
B
4.2
C
5
D
3
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

In which one of the following reactions, rate constant has the unit $$\mathrm{mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$$ ?

A
Acid catalysed hydrolysis of $$\mathrm{CH}_3 \mathrm{COOCH}_3$$
B
$$\mathrm{CHCl}_3+\mathrm{Cl}_2 \longrightarrow \mathrm{CCl}_4+\mathrm{HCl}$$
C
$$2 \mathrm{NO}(g)+\mathrm{O}_2(g) \longrightarrow 2 \mathrm{NO}_2(g)$$
D
Decomposition of HI on the surface of gold
EXAM MAP